Out-of-bounds Read Affecting squirrel3 package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.57% (78th percentile)

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  • Snyk IDSNYK-DEBIAN10-SQUIRREL3-2963011
  • published29 Jul 2022
  • disclosed28 Jul 2022

Introduced: 28 Jul 2022

CVE-2021-41556  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for Debian:10 squirrel3.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squirrel3 package and not the squirrel3 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that can lead to Code Execution. If a victim executes an attacker-controlled squirrel script, it is possible for the attacker to break out of the squirrel script sandbox even if all dangerous functionality such as File System functions has been disabled. An attacker might abuse this bug to target (for example) Cloud services that allow customization via SquirrelScripts, or distribute malware through video games that embed a Squirrel Engine.

CVSS Scores

version 3.1